Roopesh Chander

@mjtsai It doesn't :). You will have to use an `if` block in that case, I admit.

@mjtsai A minor defence: A macro with a return in it makes the code somewhat hard to read and decipher by others

@roopeshchander Yeah, some people won't like that. I think it's worth it, and it's basically the same pattern Apple's macros have long used.

@mjtsai I can see the value in macros like that. But I don't see a way to do that in Swift. Or rather, that doesn't fit with The Swift Way.

@mjtsai And about the adding a `!` after each variable use, have you considered implicit unwrapping?

@roopeshchander That's discussed in the comments.

@mjtsai Just saw that. On second thoughts, it's better NOT to use implicit unwrapping here, coz we need to check for nil. if-let is better.

@roopeshchander Choice between compiler help with safety and avoiding extra indentation.